The Batouri gold district in SE Cameroon hosts a number of deeply weathered shear-zone related gold occurrences which are currently under exploration. The lode gold mineralization (quartz-pyrite-sphalerite-arsenopyrite) appears to be related to felsic magmatism. We will study the hydrothermal mineral associations and date both hydrothermal muscovite (Ar-Ar stepped heating) and zircon (U-Pb) in granite. A particular feature is muscovite in meter-thick saprolite which will be tested for its potential for Ar-Ar dating in deeply weathered terrain.